Implement emission of all Win64 exception tables. Make the COFF streamer emit
these tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131833 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index 164325e..f268f9e 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -506,3 +506,10 @@
if (EmitDebugFrame)
MCDwarfFrameEmitter::Emit(*this, usingCFI, false);
}
+
+void MCStreamer::EmitW64Tables() {
+ if (!getNumW64UnwindInfos())
+ return;
+
+ MCWin64EHUnwindEmitter::Emit(*this);
+}
diff --git a/lib/MC/MCWin64EH.cpp b/lib/MC/MCWin64EH.cpp
index 9884f66..fc39450 100644
--- a/lib/MC/MCWin64EH.cpp
+++ b/lib/MC/MCWin64EH.cpp
@@ -110,7 +110,7 @@
}
static void EmitRuntimeFunction(MCStreamer &streamer,
- MCWin64EHUnwindInfo *info) {
+ const MCWin64EHUnwindInfo *info) {
MCContext &context = streamer.getContext();
streamer.EmitValue(MCSymbolRefExpr::Create(info->Begin, context), 4);
@@ -185,5 +185,20 @@
llvm::EmitUnwindInfo(streamer, info);
}
+void MCWin64EHUnwindEmitter::Emit(MCStreamer &streamer) {
+ MCContext &context = streamer.getContext();
+ // Emit the unwind info structs first.
+ const TargetAsmInfo &asmInfo = context.getTargetAsmInfo();
+ const MCSection *xdataSect = asmInfo.getWin64EHTableSection();
+ streamer.SwitchSection(xdataSect);
+ for (unsigned i = 0; i < streamer.getNumW64UnwindInfos(); ++i)
+ llvm::EmitUnwindInfo(streamer, &streamer.getW64UnwindInfo(i));
+ // Now emit RUNTIME_FUNCTION entries.
+ const MCSection *pdataSect = asmInfo.getWin64EHFuncTableSection();
+ streamer.SwitchSection(pdataSect);
+ for (unsigned i = 0; i < streamer.getNumW64UnwindInfos(); ++i)
+ EmitRuntimeFunction(streamer, &streamer.getW64UnwindInfo(i));
+}
+
} // End of namespace llvm
diff --git a/lib/MC/WinCOFFStreamer.cpp b/lib/MC/WinCOFFStreamer.cpp
index 8b0cfcb..6c36c12 100644
--- a/lib/MC/WinCOFFStreamer.cpp
+++ b/lib/MC/WinCOFFStreamer.cpp
@@ -388,6 +388,7 @@
}
void WinCOFFStreamer::Finish() {
+ EmitW64Tables();
MCObjectStreamer::Finish();
}